I've read that the DB60XG supports an MT-32 emulation mode. However, I can't get it to work on my NEC XR385. When I try to run "GSPLAY MT32", I get "No MT-32 reset - Device does not support MT-32 patches". I'm pretty sure I have GSPLAY configured properly since it does play MIDI files through the card. What do I need to do to make this work?

EDIT: I have also tried some of the other methods in this forum to enable the MT32 emulation (a certain MIDI file, and the program MIDICOM), but while these run, the resulting audio in Monkey Island (I'm using this to test it) is just a mess.